Perhaps you should try some spelling variations:
"human leases periodicals." » "human senses periodicals.", "human diseases periodicals.", "human measures periodicals.", "humans leaves periodicals.", "human losses periodicals."
"human bones periodicals." » "human bonds periodicals.", "human stones periodicals.", "human moines periodicals.", "human bone periodicals.", "human bodies periodicals.", "human genes periodicals."
"human gases periodicals." » "human games periodicals.", "human gas periodicals.", "human fishes periodicals.", "human cases periodicals.", "human causes periodicals.", "human gamers periodicals."

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("human bones periodicals.") or ((("human gases periodicals.") OR ("human leases periodicals."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("human bones periodicals.") OR ((("human gases periodicals.") OR ("human leases periodicals.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"human bones periodicals.\") or (((\"human gases periodicals.\") OR (\"human leases periodicals.\"))))".
• Removing quotes may allow a broader search: (( human bones periodicals. ) or ((( human gases periodicals. ) OR ( human leases periodicals. )))).
• Adding a wildcard symbol may retrieve word variants: (("human bones periodicals.") or ((("human gases periodicals.") OR ("human leases periodicals."))))*.